12240523631 has 64 divisors (see below), whose sum is σ = 15315763200. Its totient is φ = 9561214080.

The previous prime is 12240523627. The next prime is 12240523639. The reversal of 12240523631 is 13632504221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12240523631 - 2² = 12240523627 is a prime.

It is a super-2 number, since 2×12240523631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12240523594 and 12240523603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240523639) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61510070 + ... + 61510268.

It is an arithmetic number, because the mean of its divisors is an integer number (239308800).

Almost surely, 2^12240523631 is an apocalyptic number.

12240523631 is a deficient number, since it is larger than the sum of its proper divisors (3075239569).

12240523631 is a wasteful number, since it uses less digits than its factorization.

12240523631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484.

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 12240523631 in words is "twelve billion, two hundred forty million, five hundred twenty-three thousand, six hundred thirty-one".